Hello I am new here and arrived after finding a mention online about this group and and article from 15 years ago! I have a late 60s serial movement cal89 iwc and a case serial i think is 1979s with what looks to be the gold plated zwyro custom movement. Very little info available online and so I am here looking for information. Thank you.
I agree, there's not a lot of info on the Zwyro Cal 89 gold-plated movement. Have you tried reaching out to IWC collectors or forums dedicated to vintage watches? They might have some insights. Looking forward to hearing more about your find!
Thanks for your reply. I have not - I started here bc this was mentioned in the article. This was my first “forum” ever and its a little hard to figure out. Do you have a link to that?